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Posted

My amp reading on my 47 Dodge reads all the way to the right, when I'm driving, or when I push on the accelarator.  At idle, it reads slightly above the mid mark.   Doesn't look right to me.  What would cause this?  Any damage to the electrical system if I keep driving like this?  Ed

Posted

Has your battery run down and the generator or alternator is trying to recharge the battery?  

 

(Do you have a generator or an alternator?)  Charging at idle would suggest that you have an alternator; it charges at idle; more speed, more charge, until the battery is charged.

 

Or is the ammeter wired the other way, so that the needle to the right would indicate discharge?  (Not likely; why more discharge at speed?) 

Posted

If you turn on your headlights does it moderate the rate of charge?  do the high beams have more of an effect ?  If yes then your regulator may be at fault (the cut out circuit most likely)  Could be as simple as points int he regulator sticking.  The field could be inadvertently grounding through a worn wire.

 

The constant over charging will cook the electrolyte solution out of the battery.  If it uncovers the tops of the plates it could be an explosive situation.

Posted

Thanks, guys, for that info.  Will start to troubleshoot the problem.  In fact, I'm going out to the garage and check the battery to see if I lost electrolyte.  Ed

Posted (edited)

Checked the electrolyte in battery, water above the plates.  With hi beam on, raced engine, and light slightly increased in intensity.  Have a generator, after running car for five minutes, it felt warm, but not hot.  I'm thinking about the voltage regulator.  When I got the car last year, I noticed the battery was hooked up to be negative ground. Not positive.  Would this be a reason?  All electrical circuits function normally.  I saw on ebay, a voltage regulator for sale that stated it's for a negative ground.  Think that might be the problem?    I hope you guys don't take offense that I ask stupid questions, and that I should know better.  I appreciate this forum for the input I get on a lot of issues I have with me car.   Ed

Edited by central52
Posted

OK, problem solved. Greg g suggested maybe points in regulator sticking. So, I gave the regulator a couple of good whacks with a plastic hammer. And, it worked. Amp gauge reads normal when I gas the pedal, just moves to the right a little now. Whew! Ed

Posted

OK, problem solved. Greg g suggested maybe points in regulator sticking. So, I gave the regulator a couple of good whacks with a plastic hammer. And, it worked. Amp gauge reads normal when I gas the pedal, just moves to the right a little now. Whew! Ed

That is good. Next time this happens you will know what to do. :rolleyes:

Posted (edited)

hope you have a large collection of various size hammers to be able to continually effect this fix as it gets worse and worse.....USED TO BE  you could say if you can 't fix it with a hammer you had an electrical problem..it seems, I WAS WRONG

Edited by Plymouthy Adams
  • Like 1
Posted

But I probably need a new voltage regulator, I guess. If it happens again, I'll buy one. Ed

this is why I suggested and linked to you the book...proper troubleshooting specs and burnishing of the contacts and ensuring cut in and cut our rates are outlined in the book...odds are you just need some precision maintenance...

 

I was ragging you on the hammer and tape...but DO wait for the book....read it a couple times then have it at your side when you go to tweak the regulator if you decide you are up to the task and have the proper tools on  hand.

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